广播电视英语短句 第 316 课：混植法-4

Apples, for example, release ethylene gas, a plant hormone. 例如苹果，释放出乙烯气体，这是一种植物激素。

It can cause other foods to ripen too quickly. 它可以使其它的食物非常快的成熟。

Fruits that release a lot of ethylene also include apricots , melons and tomatoes. 可以释放出乙烯气体的其它的一些水果包括：杏、瓜和西红柿。

Vegetables easily affected by ethylene include asparagus, broccoli, cabbage and cucumbers. 很容易受到乙烯气体影响的蔬菜包括芦笋、球花甘蓝、卷心菜和黄瓜。

Markets often separate high ethylene-producing foods from those that are sensitive to the gas. 市场上经常把乙烯气体释放水果和易受乙烯气体影响的水果分开放置出售。